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Transcription and Regulation

Transcription and Regulation
Transcription factors are

promoters
CATT boxes
proteins which bind to DNA and regulate transcription
TATA boxes

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Transcription and Regulation
The complex of RNA polymerase, DNA template and new RNA transcript is called

transcription bubble
a translation bubble
replication bubble
none of these

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Transcription and Regulation
The binding of lac repressor to DNA could be considered to be analogous to

uncompetitive inhibition of an enzyme
allosteric effects in enzyme regulation
competitive inhibition of an enzyme
mixed-type inhibition of an enzyme

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Transcription and Regulation
Enhancers are regions that

modulate transcription
are CAT box binding proteins
bind RNA polymerase
are adjacent to the TATA box

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Transcription and Regulation
Transcription begins

upstream from the start codon
downstream from the start codon
none of these
at the start codon

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Transcription and Regulation
The closed complex at bacterial promoters is

bound more tightly when repressors are present
in equilibrium with free RNA polymerase and the promoter
not affected by promoter mutations
not affected by activator proteins

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